How do I update a package on Gentoo Linux

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Problem :

How do I update a package in Gentoo Linux?

Solution :

This is what you need to read, an intro to portage, the package manager in Gentoo.

To update everything (including dependencies and changes to use flags), then

emerge -avDuN world

To update a single package (again paying attention to dependencies etc):

emerge -avDuN <package-name>

A basic update, without checking for dependency updates would be

emerge -avu <package-name>

The -a means “ask” which is for confirmation, and the -v means “verbose”, to give more info about what it is doing.

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